Air bag pipe pile and using method

Abstract

The invention discloses an air bag pipe pile and a using method, and relates to the field of civil engineering, the air bag pipe pile comprises a main pile body and a movable pile body, the main pile body is arranged to press a soil body, at the moment, the main pile body and the movable pile body are integrated, no protrusion exists, the whole is smoothly embedded into the soil body, and after the main pile body and the movable pile body are embedded in place, the air bag pipe pile is formed. Pressurizing is started, so that the outer air bag and the inner air bag expand to squeeze the soil tightly, and the side wall friction resistance is enhanced. The main pile body comprises an outer air bag arranged on the surface of the main pile body. A force is applied to the outside by inflating the outer bladder. The movable pile body is in sliding connection with the main pile body, the movable pile body is connected with the inner air bag, expansion of the inner air bag drives the movable pile body to move, the first air bag of the pile head is pressurized, and the first air bag is pressed into the soil body towards the side wall to form built-in fixation. The main pile body is embedded into a soil body, and after the main pile body reaches a designated position, pressurization is started, so that the outer air bag and the inner air bag are continuously expanded, pressure is applied to the outer side, and the side wall friction resistance is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, in particular to an air bag pipe pile and a use method thereof. Background Art

[0002] Pressed-in caisson technology is a foundation construction technology mainly used in deep foundations, underground structures and marine engineering. This technology forms a stable base by pressing the prefabricated caisson structure into the ground. With the acceleration of urbanization and the increase in large-scale engineering projects, press-in caissons have been widely used due to their advantages such as fast construction speed and little impact on the surrounding environment.

[0003] Although the press-in caisson technology has many advantages, under certain geological conditions, such as complex strata such as soft soil, sand or rock, traditional pull-out piles may not provide sufficient reaction force to resist the uplift force during the sinking process. This may lead to construction difficulties, increase costs, and even affect project safety.

[0004] In the construction of a push-in caisson, the role of reaction facilities is crucial. They not only provide the necessary reaction force to ensure the stability of the caisson, but also prevent the caisson from shifting or tilting during construction. Therefore, developing a facility that can be quickly installed in complex formations and provide effective reaction force is of great significance to improving construction efficiency and safety. Summary of the invention

[0005] In view of the problems existing in the above-mentioned air bag pipe pile, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to quickly install the reaction force facility.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: an airbag pipe pile, comprising a main pile body, including an outer airbag arranged on the surface of the main pile body; the outer airbag is expanded to apply force to the outside; a movable pile body is slidably connected to the main pile body, the movable pile body is connected to the inner airbag, and the expansion of the inner airbag drives the movement of the movable pile body.

[0008] As a preferred solution of the airbag pipe pile of the present invention, the main pile body includes a pile head and a pile body, the pile head is provided with a plurality of first grooves, and the pile body is provided with a plurality of second grooves.

[0009] As a preferred solution of the airbag pile of the present invention, the outer airbag includes a first airbag and a second airbag which are respectively arranged in the first groove and the second groove.

[0010] As a preferred solution of the airbag pipe pile of the present invention, the first airbag is connected to an external air supply device through a first air pipe, and the second airbag is connected to an external air supply device through a second air pipe.

[0011] As a preferred solution of the airbag pile of the present invention, the movable pile body comprises a movable plate, friction particles are arranged on the outer surface of the movable plate, and the movable plate gradually extends outwards as the inner airbag expands;

[0012] The movable pile body is on the same horizontal line as the main pile body before the inner air bag is inflated.

[0013] As a preferred solution of the airbag pipe pile of the present invention, the inner airbag is connected to an external air supply device through a third air pipe.

[0014] As a preferred solution of the airbag pipe pile of the present invention, the second airbag can form a sealed state between the pipe pile and the soil after being expanded.

[0015] Another object of the present invention is to provide a method for using an airbag pipe pile, the method comprising: using a pressing device to press the pipe pile into the soil; supplying air to the first airbag, the second airbag and the inner airbag through an air supply device; when the pipe pile needs to be taken out, the gas in the first airbag, the second airbag and the inner airbag is discharged through an air suction device.

[0016] As a preferred embodiment of the method of use of the present invention, the first airbag, the second airbag and the inner airbag are inflated at the same time.

[0017] As a preferred embodiment of the method of use of the present invention, the second airbag is inflated and pressed into the soil to form an embedding.

[0018] The beneficial effects of the present invention are:

[0019] 1. The present invention can be quickly installed and provide a large reaction force, greatly shortening the construction period. Through the pressurization of the airbag, the rapid deformation of the pile body and the tight squeezing of the soil body can be achieved, thereby accelerating the sinking speed of the caisson.

[0020] 2. In complex strata, the device of the present invention can effectively enhance the frictional resistance between the pile body and the soil body through the air bag pressurization technology, thereby improving the stability and safety of the caisson.

[0021] 3. Since the device of the present invention can use a shorter pile body, the material usage and construction difficulty are reduced, thereby reducing the construction cost.

[0022] 4. The device of the present invention reduces the disturbance to the surrounding environment because it does not require large-scale earth excavation, reduces the generation of noise and dust, and is more environmentally friendly.

[0023] 5. The device can adapt to different geological conditions, especially in complex strata, and can provide stable and effective reaction force, making the application scope of pressure-type caisson technology more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0025] Figure 1 This is a scene diagram of the airbag pile.

[0026] Figure 2 This is the structural diagram of the airbag pile.

[0027] Figure 3 It is the motion diagram of the airbag of the airbag pile. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2, which is the first embodiment of the present invention, provides an airbag pipe pile, which includes a main pile body 100 and a movable pile body 200. The soil is pressed into the main pile body 100. At this time, the main pile body 100 and the movable pile body 200 are a whole without any protrusions. The whole body is smoothly embedded into the soil. After being embedded in place, pressurization is started to expand the outer airbag 101 and the inner airbag 201, squeeze the soil, and enhance the side wall friction resistance.

[0033] Specifically, the main pile body 100 includes an outer air bag 101 disposed on the surface of the main pile body 100;

[0034] The outer air bag 101 is inflated to apply force to the outside.

[0035] Preferably, the movable pile body 200 is slidably connected to the main pile body 100, and the movable pile body 200 is connected to the inner air bag 201. The expansion of the inner air bag 201 drives the movable pile body 200 to move, pressurize the first air bag 101a of the pile head 102, so that it is pressed into the soil toward the side wall to form embedding.

[0036] When in use, the main pile body 100 is embedded into the soil. After reaching the designated position, pressurization is started, so that the outer air bag 101 and the inner air bag 201 are continuously expanded and pressurized to the outside to enhance the side wall friction resistance.

[0037] Example 2

[0038] Reference Figures 2-3 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0039] Specifically, the main pile body 100 includes a pile head 102 and a pile body 103;

[0040] The pile head 102 is provided with a plurality of first grooves 102a. The pile body 103 is provided with a plurality of second grooves 103a.

[0041] Preferably, the outer airbag 101 includes a first airbag 101a and a second airbag 101b respectively disposed in the first groove 102a and the second groove 103a. The airbags should be placed at the center or close to the center of the pile body to ensure uniform distribution of force when pressurized.

[0042] The airbag is made of high-pressure resistant and corrosion-resistant materials, such as synthetic rubber or special plastics, to ensure that the airbag will not rupture under high pressure.

[0043] Preferably, the first airbag 101a is connected to an external gas supply device through a first air pipe 101c, and the second airbag 101b is connected to an external gas supply device through a second air pipe 101d. The gas supply device may be an air compressor or a gas cylinder.

[0044] Preferably, the movable pile body 200 includes a movable plate 202, and friction particles 202a are arranged on the outer surface of the movable plate 202. The movable plate 202 gradually extends outward as the inner air bag 201 expands;

[0045] The movable pile body 200 is on the same horizontal line as the main pile body 100 before the inner air bag 201 is inflated.

[0046] Preferably, the inner air bag 201 is connected to an external gas transmission device through a third air pipe 201a.

[0047] Preferably, after the second airbag 101b is inflated, a sealing state can be formed between the pipe pile and the soil.

[0048] When in use, the pile body is quickly pressed into place using the pressing device. After being pressed into place, the air bags inside and outside the pile are pressurized. The inner air bag 201 is pressurized to provide confining pressure, so that the movable pile body 200 stretches outward, and the second air bag 101b is pressurized to squeeze the soil and enhance the side wall friction resistance. Afterwards, the first air bag 101a of the pile head 102 is pressurized to press it into the soil toward the side wall to form an embedded structure. The above devices work together to use a shorter pile to quickly provide a larger reaction force and achieve the sinking assistance work of the press-in caisson.

[0049] Example 3

[0050] Reference Figure 3 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0051] Specifically, the pipe pile is pressed into the soil using a pressing device;

[0052] Supplying gas to the first airbag 101a, the second airbag 101b and the inner airbag 201 through the air supply device;

[0053] When the pipe pile needs to be taken out, the gas in the first airbag 101a, the second airbag 101b and the inner airbag 201 is discharged through the suction device.

[0054] Preferably, the first airbag 101a, the second airbag 101b and the inner airbag 201 are inflated at the same time.

[0055] Preferably, the second airbag 101b is inflated and pressed into the soil to form an embedding.

[0056] When in use, it can adapt to different geological conditions, especially in complex strata, and can provide stable and effective reaction force, making the application scope of the pressure-in caisson technology more extensive.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. An airbag pile, characterized in that: include, A main pile body (100) comprises an outer air bag (101) arranged on the surface of the main pile body (100); Applying force to the outside by inflating the outer air bag (101); The movable pile body (200) is slidably connected to the main pile body (100). The movable pile body (200) is connected to an inner air bag (201). The expansion of the inner air bag (201) drives the movable pile body (200) to move.

2. The airbag pile as claimed in claim 1, characterized in that: The main pile body (100) comprises a pile head (102) and a pile body (103); The pile head (102) is provided with a plurality of first grooves (102a). The pile body (103) is provided with a plurality of second grooves (103a).

3. The airbag pile as claimed in claim 2, characterized in that: The outer airbag (101) comprises a first airbag (101a) and a second airbag (101b) which are respectively arranged in the first groove (102a) and the second groove (103a).

4. The airbag pipe pile according to claim 3, characterized in that: The first air bag (101a) is connected to an external air supply device via a first air pipe (101c), and the second air bag (101b) is connected to an external air supply device via a second air pipe (101d).

5. The airbag pipe pile according to claim 4, characterized in that: The movable pile body (200) comprises a movable plate (202), the outer surface of which is provided with friction particles (202a), and the movable plate (202) gradually extends outwards as the inner air bag (201) expands; The movable pile body (200) is on the same horizontal line as the main pile body (100) before the inner air bag (201) is inflated.

6. The airbag pipe pile according to claim 5, characterized in that: The inner air bag (201) is connected to external air supply equipment via a third air pipe (201a).

7. The airbag pipe pile according to claim 6, characterized in that: After the second air bag (101b) is inflated, a sealed state can be formed between the pipe pile and the soil.

8. A method of use, applied to the airbag pile according to claims 1 to 7, the method comprising: Using a pressing device to press the pipe pile into the soil; Supplying gas to the first airbag (101a), the second airbag (101b) and the inner airbag (201) through an air supply device; When the pipe pile needs to be taken out, the gas in the first air bag (101a), the second air bag (101b) and the inner air bag (201) is discharged through an air suction device.

9. The method of use according to claim 8, characterized in that: The first airbag (101a), the second airbag (101b) and the inner airbag (201) are inflated at the same time.

10. The method of use according to claim 9, characterized in that: The second air bag (101b) is inflated and pressed into the soil to form an embedded structure.

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